21422344410 has 48 divisors (see below), whose sum is σ = 55792160424. Its totient is φ = 5702977536.

The previous prime is 21422344393. The next prime is 21422344423. The reversal of 21422344410 is 1444322412.

21422344410 is a `hidden beast` number, since 2 + 14 + 2 + 234 + 4 + 410 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17936977041 + 3485367369 = 133929^2 + 59037^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147327 + ... + 254066.

Almost surely, 2^21422344410 is an apocalyptic number.

21422344410 is an abundant number, since it is smaller than the sum of its proper divisors (34369816014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21422344410 is a wasteful number, since it uses less digits than its factorization.

21422344410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401999 (or 401996 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 21422344410 its reverse (1444322412), we get a palindrome (22866666822).

The spelling of 21422344410 in words is "twenty-one billion, four hundred twenty-two million, three hundred forty-four thousand, four hundred ten".